Douglas Harper's Etymology Dictionary
also SWAT, 1968, acronym said to be for Special Weapons and Tactics squad or team; or Special Weapons Attack Team.
Wikipedia
S.W.A.T. is a 2003 American action- crime- thriller film directed by Clark Johnson, and is based on the 1975 television series of the same name. It stars Samuel L. Jackson, Colin Farrell, Michelle Rodriguez, LL Cool J, and Jeremy Renner. It was produced by Neal H. Moritz and released in the United States on August 8, 2003.
S.W.A.T. is the soundtrack score for the 2003 action film S.W.A.T., based on the 1970s TV series of the same name, composed by Elliot Goldenthal.
S.W.A.T. was an American action/ crime drama series about the adventures of a Special Weapons And Tactics (S.W.A.T.) team operating in an unidentified California city. A spin-off of The Rookies, the series aired on ABC from February 1975 to April 1976.
Like The Rookies, S.W.A.T. was produced by Aaron Spelling and Leonard Goldberg.